2011-2016 GM 2500HD/3500HD 6.6L LM Duramax Driveline

Whether you're compensating for larger tires and wheels or just trying to make your 2011-2016 GM 6.6L Duramax LML one of the quickest trucks around, these premium driveline upgrades are here to help. More aggressive upgrades like ring-and-pinion gears allow your GM 2500/3500 get back the acceleration lost along with a proper power band. Aftermarket differentials offer up an excellent improvement in traction so you can handle just about any terrain on the planet. New differential covers make maintenance much easier while adding an impressive appeal to your truck. GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.